None of those things have been shown to be inaccurate. Lack of evidence is not evidence of lack.
Not by itself, but there are occasions where the truth of a claim implies that there will be evidence to be found. In these cases, not finding that evidence speaks to the truth of the claim.
And there is no positive negative evidence to entirely disprove it.
"What is proof"-type questions aside, there is quite a bit of evidence that many of the events in the Torah aren't literally true.
The archaeological evidence shows smooth, gradual change with no abrupt transitions. The culture that became the Jews grew out of the indigenous people of Canaan. The Israelites didn't wander in from Egypt and drive out the people who were already living there; they were there all along.
If the battles and conquests of the Torah are based in fact at all, they aren't the story of foreign conquerors who drove out the natives, but the story of an uprising of one native group against others.
And as for the flood and the Earth standing still... are you serious?